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Finding the Fourth Proportional to 185,159.91, 255,273.71 and 139,024.29

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Solution

The fourth proportional to 185,159.91, 255,273.71 and 139,024.29 is: 191,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,159.91 : 255,273.71 = 139,024.29 : x
  2. Step 2: Convert to fraction form
    185,159.91/255,273.71 = 139,024.29/x
  3. Step 3: Cross multiply
    185,159.91x = 255,273.71 × 139,024.29
  4. Step 4: Simplify right side
    185,159.91x = 35,489,245,593.29
  5. Step 5: Solve for x
    x = 35,489,245,593.29/185,159.91
  6. Step 6: Final answer
    x = 191,668.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.